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Lehdistötiedote27 April 2026Siemens MobilityMunich
Siemens and L.K. Comstock Digitalize Signaling Technology on NYC's Iconic Fulton-Liberty Lines
Siemens and L.K. Comstock Digitalize Signaling Technology on NYC's Iconic Fulton-Liberty Lines. Photo source: Siemens Mobility
“Modernizing the Fulton-Liberty
Lines is not just a technological milestone — it’s a commitment to delivering a
better, more efficient, and frequent travel experience for millions of New
Yorkers," said
Michael Peter, CEO of Siemens Mobility. "With
Siemens Mobility’s next-generation CBTC system, Trainguard MT, we have the
power to enhance on-time performance and reduce train intervals to as little as
90 seconds, ensuring faster, more reliable service across the Fulton-Liberty
Lines. We are grateful to the Metropolitan Transportation Authority for their
trust in Siemens Mobility to help shape the future of sustainable and efficient
urban transit in New York."
“L.K. Comstock is proud
to partner with Siemens Mobility and the MTA to deliver this critical upgrade
to one of New York City’s most heavily traveled corridors,” said
Ben
D’Alessandro, President of L.K. Comstock. “Together, we are helping build a
more resilient, higher-capacity transit system for the future.”
Siemens
Mobility will deploy Trainguard MT to seamlessly integrate nine subway
interlockings across two separate subway lines. This includes
replacing outdated track circuits with innovative axle counter technology, as
well as introducing 5G-based radio communications to power real-time, optimized
train control.
As part of the signal modernization,
LKC will decommission all signaling and associated equipment that is replaced
by the Train Control System. The scope of work includes the installation and
replacement of 24 new Special Work Portions, 94 switch machines, and
constructing four new train control rooms. These upgrades require more than 1,200
kilometers of cable to be installed by LKC throughout the tunnels and within
the newly built facilities.
This project introduces 5G commuter
cellular service, ensuring riders remain connected as they travel between
stations. LKC will install a Distributed Antenna System and support fiber
cabling in the underground tunnel portion of the project, which spans 62 track
segments with work in 18 stations.
Once the system modernization is complete, Siemens Mobility will also take on a 25-year
maintenance contract with the option for two additional five-year extensions.
This long-term partnership
underscores a commitment to sustained performance and reliability at the core
of New York City’s transit future.
The Fulton-Liberty
Lines serve as a vital artery in New York City’s sprawling transit network. Starting at Jay
Street-MetroTech Station, the
Fulton Line travels through Central Brooklyn and then connects to the Liberty
Line, which begins at Euclid Avenue Station and concludes in Ozone Park,
Queens, linking multiple major
subway lines along the way. Built in the 1930s and 1940s, this historic subway
corridor is now at the heart of the MTA’s vision to create a future-ready and
resilient transportation system. The A (Express) train utilizes the
Fulton-Liberty Lines for a significant portion of its route in Brooklyn and
Queens, while the C (Local) train uses the Fulton Line for its entire route in
Brooklyn.
With its North
American headquarters located in New York City, Siemens Mobility and LKC have a
deep-rooted relationship with the MTA and decades of experience delivering
next-generation signaling and rolling stock technology to the region. This
partnership not only strengthens the positions of Siemens Mobility and LKC as
trusted advisors but also reinforces their commitment to shaping a more
efficient and interconnected future for New York City’s transit system and the
millions who rely on it every day.
For this press release
Siemens Mobility
is a separately managed company of Siemens AG. As a leader in intelligent transport solutions for more than 175 years, Siemens Mobility is constantly innovating its portfolio. Its core areas include rolling stock, rail automation and electrification, a comprehensive software portfolio, turnkey systems as well as related services. With digital products and solutions, and the use of industrial AI, Siemens Mobility is enabling mobility operators worldwide to make their infrastructure intelligent, increase value sustainably over the entire lifecycle, enhance passenger experience, and guarantee availability. In fiscal year 2025, which ended on September 30, 2025, Siemens Mobility posted revenue of €12.4 billion and employed around 43,400 people worldwide. Further information is available at:
www.siemens.com/mobility